ATE337890T1 - METHOD FOR BLOCKING A GLASS LENS BLANK ONTO A HOLDING BLOCK AND FOR GENERATING A VIRTUAL IMAGE OF THE LENS BLANK IN A COMPUTER ENVIRONMENT - Google Patents

METHOD FOR BLOCKING A GLASS LENS BLANK ONTO A HOLDING BLOCK AND FOR GENERATING A VIRTUAL IMAGE OF THE LENS BLANK IN A COMPUTER ENVIRONMENT

Info

Publication number
ATE337890T1
ATE337890T1 AT00904775T AT00904775T ATE337890T1 AT E337890 T1 ATE337890 T1 AT E337890T1 AT 00904775 T AT00904775 T AT 00904775T AT 00904775 T AT00904775 T AT 00904775T AT E337890 T1 ATE337890 T1 AT E337890T1
Authority
AT
Austria
Prior art keywords
lens blank
lens
blocking
generating
computer environment
Prior art date
Application number
AT00904775T
Other languages
German (de)
Inventor
Marc Y Savoie
Gary V Underhill
Original Assignee
Satisloh Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Satisloh Gmbh filed Critical Satisloh Gmbh
Application granted granted Critical
Publication of ATE337890T1 publication Critical patent/ATE337890T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes
    • B24B13/065—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes using a template
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00932—Combined cutting and grinding thereof
    • B29D11/00942—Combined cutting and grinding thereof where the lens material is mounted in a support for mounting onto a cutting device, e.g. a lathe, and where the support is of machinable material, e.g. plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00951—Measuring, controlling or regulating
    • B29D11/00961—Measuring, controlling or regulating using microprocessors or computers

Abstract

A method for generating a virtual entity of an ophthalmic lens blank in a computer environment and for using this entity to monitor and control a lens generation process. The method comprises the steps of analyzing an image of a lens blank, measuring a first surface of a lens blank, probing a second surface, and locating both surfaces and the contour of the lens blank in a spatial coordinate system. These data are used to generate a virtual entity that is a precise representation of the lens blank. The virtual entity is used throughout the lens generation process for blocking the lens, for calculating and selecting lens orientation, skewing, prism, tool angles and ideal tool paths that produce best lens quality.
AT00904775T 1999-02-22 2000-02-21 METHOD FOR BLOCKING A GLASS LENS BLANK ONTO A HOLDING BLOCK AND FOR GENERATING A VIRTUAL IMAGE OF THE LENS BLANK IN A COMPUTER ENVIRONMENT ATE337890T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/252,685 US6012965A (en) 1997-10-07 1999-02-22 Manufacturing ophthalmic lenses using lens structure cognition and spatial positioning system

Publications (1)

Publication Number Publication Date
ATE337890T1 true ATE337890T1 (en) 2006-09-15

Family

ID=22957080

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00904775T ATE337890T1 (en) 1999-02-22 2000-02-21 METHOD FOR BLOCKING A GLASS LENS BLANK ONTO A HOLDING BLOCK AND FOR GENERATING A VIRTUAL IMAGE OF THE LENS BLANK IN A COMPUTER ENVIRONMENT

Country Status (7)

Country Link
US (1) US6012965A (en)
EP (1) EP1194267B1 (en)
JP (1) JP2003523832A (en)
AT (1) ATE337890T1 (en)
AU (1) AU2655100A (en)
DE (1) DE60030441T2 (en)
WO (1) WO2000050200A2 (en)

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Also Published As

Publication number Publication date
EP1194267A2 (en) 2002-04-10
JP2003523832A (en) 2003-08-12
EP1194267A3 (en) 2003-01-15
DE60030441D1 (en) 2006-10-12
AU2655100A (en) 2000-09-14
US6012965A (en) 2000-01-11
WO2000050200A3 (en) 2002-11-28
EP1194267B1 (en) 2006-08-30
DE60030441T2 (en) 2007-08-30
WO2000050200A2 (en) 2000-08-31

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